JP4607117B2 - Emulsion for lignocellulosic product, method for producing the same, improved lignocellulosic product, and method for producing the same - Google Patents

Description

  The present invention relates to lignocellulosic composite products as well as emulsions useful for improving wood. The invention further relates to a method for producing such an emulsion.

  The panel board industry includes, but is not limited to, plywood, OSB (orientated board) (commonly called flake or wafer board), medium density fiber board, particle board, etc. It shall be called a composite product. In these composite products and wood (wood that has been cut and processed for building materials) (collectively referred to as “lignocellulosic products” in the specification), it is desirable to be able to control moisture absorption or “uptake” and swelling. . These are properties that adversely affect the usefulness of the product. For example, in a plywood used as a flooring material, the finishing material and the tile material are distorted or creep occurs due to swelling. A similar problem is seen in the swelling of OSB used as a roofing material in parts exposed to moisture. Like wood and other lignocellulosic products, these composite panel panels also absorb moisture when stored in rain exposure, causing growth of bacteria, fungi, insects, etc. It is known that it will deteriorate.

  Traditionally, lignocellulosic composite products have been produced by hot pressing lignocellulosic materials with wax or thermosetting resins. This is conventionally called an adhesion method. The wax functions as a sizing agent for improving the water resistance of the composite material, and the resin functions as an adhesive for joining and integrating materials constituting the composite material. Resole is widely used as a bonding resin for lignocellulosic composite products.

  In a conventional hot press method for producing a lignocellulosic composite product, the lignocellulosic material is mixed with a phenolic resin and other ingredients in a blender or mixer. The resulting blend or mixture is usually pressed at a pressure higher than atmospheric pressure and higher than room temperature to form a composite. The lignocellulosic material used in the manufacture of the mat can be selected from the group consisting of wood fibers, wood flakes, wood strands, wood chips, wood particles and mixtures thereof. The lignocellulosic materials listed here are referred to in the industry as wood furnishes. However, it is well known that other wood furnishes such as straws, bagasse, bark, recycled wood fibers, recycled paper fibers and mixtures thereof can be used. Wood furnish is blended or mixed with a phenolic resin and then molded on a support material to form a preform having the shape of a final product. This preform is placed on a call plate of a hot press machine, and a final product is obtained by applying a pressure higher than atmospheric pressure and a temperature higher than room temperature. The phenolic resin is polymerized by the action of high temperature and high pressure, and the preform is joined as an integrated final product. This hot pressing method is further described in U.S. Pat. No. 4,433,120 to Shui-Tung Chiu.

  Lignocellulosic composite products are mainly used in the construction and manufacturing industries. These products can be used in buildings and any other products that have traditionally used wood, but current lignocellulosic composite products have low dimensional stability, which affects the mechanical properties of the products. The load resistance is low. In addition, such low dimensional stability leads to bumpy roofs, floor underlays and building sidewalls. Two methods have been proposed as main methods for producing a lignocellulosic composite product having excellent dimensional stability. However, these methods are all expensive and are not suitable for practical use. The first method is called a bulking process. In this method, a lignocellulosic material is impregnated with a water-soluble polymer such as polyethylene glycol, impregnated with a low molecular weight resin such as phenol-formaldehyde, or impregnated with a vinyl monomer and polymerized in that state. . The second method is called a chemical modification method. In this method, lignocellulose is esterified by, for example, acetylation, or the lignocellulose is crosslinked using, for example, an aldehyde. As another method of chemical modification, there is also a method of reacting hemicellulose and lignin at a high temperature, usually using treatment with steam. These chemical modification methods are costly and reduce the strength of the composite once formed.

  The phenol-formaldehyde resin used in the production of lignocellulosic composite products is given as a solid or liquid. Powdered phenolic resins such as novolac, resol, or mixtures thereof are widely used. U.S. Pat. No. 4,098,770 to Berchem et al. Describes phenol formed by spray drying, modified by the addition of non-phenolic polyhydroxy compounds used in the manufacture of wafer boards. -Formaldehyde resins are disclosed. It is also possible to use liquid phenol-formaldehyde such as resole or a combination of resole and novolac in the production of lignocellulosic composite products. Regarding the conditions for the production of liquid or solid phenol-formaldehyde resins, see “Phenolic Resins, Chemistry, Applications and Performance” (A. Knop and A. Knop). and IA Pilato) Springer-Verlag (1985)) and "Advanced Wood Adhesive Technology" (disclosed in A Pizzi, Marcel Dekker (1994)). Yes.

  Historically the simplest use of molten carbohydrates and stearic acid / triethanolamine (TEA) or diethanolamine (DEA) and / or lignosulfonate as surfactants in the manufacture of board panels to provide water resistance with different performance Emulsions have been used. However, these compounds produce undesirable emissions, are unstable in performance, are difficult to handle and store, and cause foaming, which is the required level of wax application required to achieve the desired results. Has the problem of being unpredictable.

  As a method widely used in the conventional bonding method for the purpose of improving the dimensional stability as described above, there is a use of a wax as a sizing agent. The wax-based sizing agent imparts a certain degree of water repellency to the once formed composite material. Paraffin is a composite sizing agent. As a method for imparting water repellency using a wax-based sizing agent, there is a method of reducing the surface tension by coating the surface of lignocellulose. As another method for imparting water repellency using a wax-based sizing agent, there is a method of providing a barrier property against water absorption by the capillary by partially filling the capillary inside the lignocellulose.

  Conventional antiseptics for lignocellulosic products often contain heavy metals such as chromated copper arsenate (CCA). The pressure treatment of wood products, that is, wood using CCA is called an urmanize treatment. Another method uses creosote oil containing polycyclic aromatic hydrocarbons (PAH) and is called creosote. In these conventional methods, the preservative penetrates only around the periphery. In addition, the use of urmanized and / or creosote treated wood has increased pressure from environmental groups. Problems with wood that has undergone CCA treatment include problems that do not meet the standards of the Water Pollution Control Law, and problems with waste wood from CCA-treated wood, which are due at least in part to heavy metals contained in preservatives. Is. Creosote oil has excellent penetrability, weather resistance and antiseptic properties, but has problems such as odor, skin irritation, health hazard and black color. Other preservatives for wood with low perceived risk include ammonia base copper tetravalent ammonium complex (ACQ), ammonia copper zinc arsenate (ACZA), copper bis (dimethyldithiocarbamate) (CDDC), ammonia copper There are citrate, copper azole, etc., but commercial use is still limited.

  Recent organic biocides have relatively little impact on the environment and, for example, are believed not to cause the problems seen with CCA treated wood. Biocides such as tebuconazole are very soluble in common organic solvents, but some have low solubility such as chlorothalonil. The solubility of an organic biocide determines the market in which wood products treated with the biocide are suitable. A highly soluble biocide can be dissolved in a small amount of organic solvent at a high concentration, and this solution can be dispersed in water using an appropriate emulsifier to form an aqueous emulsion. When this emulsion is used in a conventional wood pressure treatment, the wood subjected to such treatment can be used in products such as decking where the treated wood comes into contact with humans. A biocide with low solubility is used in wood as a solution of a hydrocarbon-based oil such as AWPA P9 Type A. This organic solution is used directly for the treatment of wood. Since these oils are irritating to the skin, the wood treated in this way can only be used in industrial applications such as utility poles and track sleepers.

  Accordingly, there is a need for lignocellulosic products whose dimensions are stable when in contact with moisture. Furthermore, there is a need for lignocellulosic products that do not swell when immersed in water and do not shrink when dried, and a wide range of preservatives and organic biocides are applied to wood and lignocellulosic composite products. It is requested to do.

  In one embodiment, the emulsion of the present invention comprises an unsaponifiable wax, a saponified wax, an alkylphenol component, a dispersant / surfactant, a carboxymethylcellulose component, and water. In one particular embodiment, the unsaponifiable wax is from about 33% to about 35% of the emulsion by weight, the saponified wax is from about 3% to about 5% of the emulsion, and the alkylphenol component is by weight. About 0.5% to about 2.5% of the emulsion, the dispersant is about 0.5 to about 2% of the emulsion by weight, and carboxymethylcellulose is about 0.2% to about 0.2% of the emulsion by weight. About 5%. A preservative may be added to the emulsion as necessary.

  A method for improving the water resistance of a lignocellulosic composite product prepared by mixing a lignocellulosic material with a binder into a mixture and solidifying the mixture in a selected configuration is described above in the mixture. Adding the emulsion. A lignocellulosic composite product is produced by mixing a lignocellulosic material with a binder to form a mixture, adding the aforementioned emulsion to the mixture, and solidifying the mixture in a selected configuration. A method of treating wood includes impregnating wood with the aforementioned emulsion.

  A method for preparing an emulsion comprising a single container containing a molten unsaponifiable wax, a molten saponifiable wax, an alkylphenol component, water, a dispersant / surfactant, and a carboxymethylcellulose component. And heating and stirring the mixture in the vessel is further provided. The mixture may then be homogenized. In this method, the saponified wax may preferably be provided by placing a molten saponifiable wax and a saponifying agent in the container.

A method for adding a preservative to a lignocellulosic product, impregnating the lignocellulosic product with a preservative solution in which a preservative and an emulsion are added to the carrier solvent, and removing the carrier solvent from the lignocellulosic product. There is further provided a method comprising: In one embodiment, in the step of impregnating the lignocellulosic product, placing the lignocellulosic product into the chamber, depressurizing the chamber, and adding a preservative solution to the chamber in contact with the lignocellulosic product. And repressurizing the chamber.
Further disclosed is a lignocellulosic product obtained by the above method.

  The emulsions described herein are useful in improving the water resistance of lignocellulosic products, thereby providing absorbed moisture to lignocellulosic products such as dimensional instability (swelling) and biodegradation. Adverse effects are reduced. If necessary, it is possible to add a preservative that does not have water repellency to these emulsions. In that case, the emulsion penetrates into lignocellulosic products such as wood. And prevent later leaching of such preservatives from the product.

  The emulsions described herein consist of a combination of an unsaponifiable wax, a saponifiable wax, a saponifying agent, an alkylphenol component, a dispersant / surfactant such as a carbonate, carboxymethylcellulose, and water, these components being discontinuous. It is emulsified by the wax component that forms the phase. These wax-in-water emulsions can be added to a mixture of other components of the lignocellulosic material and / or composite product without affecting the properties of the mixture required to produce the lignocellulosic composite product. It is possible to impregnate wood with these components. Further disclosed are methods of making and using such emulsions and lignocellulosic products containing such emulsions.

  Examples of lignocellulosic materials for producing lignocellulosic composite products using the emulsions described above include, but are not limited to, wood fibers, wood flakes, wood strands, wood chips, wood particles. , Straw, bagasse, bark, recycled wood fiber, recycled paper fiber, and mixtures thereof. The manufactured composite panels are known as fiber board, wafer board, strand board, orientation board, flake board, particle board, plywood and the like. Such products may further contain a resin, such as phenol-formaldehyde (PF), urea-formaldehyde (UF), or combinations thereof, in the furnish to produce the product. The emulsions described herein can be mixed with such resins and used in composite manufacturing processes as permeable composite component systems. Without being bound to a particular theory, in such emulsions, composites containing fibers by aligning the surfactant system with the discontinuous phase (ie, wax phase) and bonding with the lignin fibers. It is thought to impart hydrophobicity to the product (eg, board).

The emulsions described herein contain a wax component consisting of an unsaponifiable wax and a saponifiable wax. The unsaponifiable wax is higher than about 120 ° F (about 49 ° C), for example, about 120 ° F to about 165 ° F (about 49 ° C to about 74 ° C), optionally about 120 ° F to about 150 ° C. F (about 49 ° C. to about 66 ° C.), preferably about 135 ° F. to about 145 ° F. (about 57 ° C. to about 63 ° C.) (all ranges disclosed herein are comprehensive and linking) For example, “about 120 ° to about 165 ° F., optionally 135 ° to 145 ° F.” includes endpoints and all intermediate values and combinations thereof, for example, about 120 ° to about 145 ° F., about 130 °. ˜150 ° F. etc. are included). Suitable unsaponifiable waxes include paraffin wax, slack wax, scale wax, and the like. Such waxes are commercially available as low volatility and have a weight loss of less than about 10% in standard thermogravimetric analysis. The oil content of these waxes is usually less than about 5% by weight, preferably less than about 1% by weight. Some of these waxes have a relatively high molecular weight with an average chain length that is longer than C36, or ₃₆ carbons. Paraffin wax is usually obtained from a light lubricating oil distillate, the main component of which is a linear hydrocarbon having an average chain length of 20 to 30 carbon atoms. A suitable paraffin wax is Wax 3816 sold by Honeywell / Astor (Duluth, GA). Slack wax is a petroleum wax having an oil content of 3 to 50% by weight. Suitable slack waxes include Exxon 600 slack wax and Ashland 200 slack wax, and a combination of 50 parts Exxon 600 slack wax and 50 parts Ashland 200 slack wax.

  Suitable saponifiable waxes are those having a predetermined acid or saponification number and a melting point higher than about 180 ° F. (about 82 ° C.). Examples of saponifiable waxes include waxes obtained by liquefaction of coal, vegetable waxes obtained by treatment and / or refining of slack waxes, oxidized waxes, scale waxes and crude oils. Examples of saponifiable waxes include montan wax, carnauba wax, beeswax, bayberry wax, candelilla wax, carandy wax, castor wax, esparto wax, Japan wax, aurikuri wax, letamo-seri mingbi wax (Retamo-ceri). Mimbi wax), shellac, whale wax, sugarcane wax, wool lanolin wax and the like. An example of a useful saponifiable wax is a montan wax having a melting point of about 190 to about 200 ° F. (about 88 to about 93 ° C.). Such waxes are saponified by combining the wax with a saponifying agent. The saponifying agent is a strongly basic substance such as ammonia hydroxide or an alkali metal hydroxide such as sodium hydroxide or potassium hydroxide. The amount of saponifying agent necessary for saponification of the wax can be calculated based on the saponification value of the wax. For example, the saponification number divided by 1000 is equal to the grams of potassium hydroxide added per gram of wax.

  The polar compounds as impurities contained in these waxes preferably do not exceed about 5% (weight).

  The wax component is included in an amount of about 25% to about 50% by weight, preferably about 30% to about 40% by weight, based on the total weight of the emulsion. The wax component preferably comprises a combination of an unsaponifiable wax having a melting point of about 120 ° F. or higher and a saponifiable wax. The unsaponifiable wax may comprise from about 25 wt% to about 44 wt% of the preservative composition, and the saponifiable wax may comprise from about 0.5 wt% to about 5 wt% of the total weight of the emulsion. An example of a preferred combination of waxes is a combination of a paraffin wax such as Honeywell 3816 as the first wax and a saponifiable wax such as montan wax. In one embodiment, the wax component is about 25 wt% to about 45 wt%, preferably about 30 wt% to about 40 wt% paraffin wax, and about 2.5 wt% to about 5 wt%, preferably about 3 wt%, based on the total weight of the emulsion. 5 wt% to about 4.5 wt% saponifiable wax.

  A strong basic compound is added to the emulsion mixture to saponify the saponifiable wax. Examples of the saponifying agent include ammonium hydroxide and alkali metal hydroxides such as sodium hydroxide or potassium hydroxide. The alkali metal hydroxide is provided as a high concentration aqueous solution containing about 45% alkali metal hydroxide by weight. Ammonium hydroxide is provided as a solid. Some or all of the saponifier may be reacted in situ with the dispersant and / or other components of the emulsion. Ammonium hydroxide may be shunned due to the ammonia odor generated, but ammonium hydroxide not only saponifies the wax, but also acts as a scavenger for formaldehyde in the resin in which ammonia is used with the emulsion. Reduce the generation of formaldehyde from the final product. Furthermore, the combination of ammonium hydroxide and formaldehyde reduces the odor of ammonium hydroxide, so that in some embodiments, for example, about 0.02 to about 0.1% by weight of formaldehyde is added to the emulsion for such purposes. There is also. In addition, ammonium hydroxide is particularly useful when the emulsion is used with lignocellulosic materials consisting of trees produced in the northern United States, such as Douglas cedar and poplar.

  The saponifying agent is added by weight in an amount of about 0.15% to about 4.5% of the emulsion, optionally about 0.5% to about 3%. If necessary, a high concentration aqueous saponifier solution is added by weight in an amount of about 0.5 to about 3% of the emulsion. In the case of ammonium hydroxide, it is added as a solid in an amount of about 0.15 to about 3% of the weight of the emulsion. The amount of saponifying agent varies depending on the type of saponifying wax used or the type of wood. Depending on the use of the saponifying agent, the pH of the emulsion may take a value of about 8.5 to about 12.5, such as a value of about 8.5 to about 9.5.

  Carboxymethylcellulose suitable for use in such emulsions has a carbon chain length in the molecule of about 20 to about 50 carbon atoms. An example of a preferred carboxymethyl cellulose is sodium carboxymethyl cellulose sold under the trade name LT-30 from Penn Carboth (Somerset, PA), and has a carbon chain length of about 26 to 30 carbon atoms. Is done. Other preferred carboxymethylcellulose materials include pen carbose LT-20 and LT-42. Such carboxymethylcellulose and the reaction product of carboxymethylcellulose with a saponifying agent or other components in the emulsion are referred to herein as "carboxymethylcellulose components".

  Polynaphthalene sulfonate is preferably used in the emulsions described herein and is not bound by theory, but is believed to function as a dispersant / surfactant. This salt is the product of an in situ reaction between polynaphthalene sulfonic acid and a saponifying agent such as an alkali metal hydroxide. There is DISAL GPS sold by Handy Chemical Company (Montreal, Quebec, Canada) as a commercially available polynaphthalene sulfonic acid. These acids and acid salts are collectively referred to as polynaphthalene sulfonic acid components, and more broadly (including substitute materials) as dispersants / surfactants. The amount of dispersant / surfactant is from about 0.1% to about 5% by weight of the emulsion, optionally from about 0.25 wt% to about 5 wt%.

It has been clarified that the water absorption of the final product of lignocellulosic composite can be easily reduced by adding alkylphenol to the emulsion. As used herein, “alkylphenol” refers to a phenol compound having a long-chain alkyl group. In this case, the long-chain alkyl group may be linear or branched. Long chain alkyl groups are _C 20 _-C 42 (carbon chain length of 20 to 42 pieces of), _C 24 _{-C 34} as an example, preferably of _C 24 _{-C 28.} Such alkylphenols include polymerized methylene-linked alkylphenols, carbonates, calcium carbonates, long-chain branched-chain calcium alkylphenols, long-chain linear calcium alkylphenols, and maleic acid complex polymers substituted / unsubstituted with amine groups. It is done. The long chain alkyl group is a substituent made of a polymer such as polyethylene, polypropylene, or polybutylene group. Alkyl substituents are a mixture of different chain lengths, as is often the case with commercially available materials. The alkylphenol is preferably selected such that the average carbon chain length of the alkyl moiety is approximately equal to or close to the average carbon chain length of carboxymethylcellulose. As an example, an alkylphenol average carbon chain length in the range of from about C _{24 ~} about C _34, average carbon chain length of from about 26 to about 32 pieces of carbon, for example from carboxymethylcellulose, such Karubosu LT-30 carboxymethylcellulose Can be used in the resulting emulsion.

The alkyl group of the alkylphenol can be derived from the corresponding olefin. For example, a C ₂₆ alkyl group is derived from a C ₂₆ alkene, preferably a 1-alkene, a C ₃₄ alkyl group is derived from a C ₃₄ alkene, and a mixture of alkyl groups of different chain lengths is derived from a corresponding mixture of olefins. . However, when the alkyl group is an alkyl group having at least about 30 carbon atoms, the alkyl group is a carbon such as ethylene, propylene, butene-1, isobutene, butadiene, isoprene, 1-hexene, and 1-octene. It may be an aliphatic group (or a mixture of these substituents) composed of a mono- or diolefin homopolymer or interpolymer (eg, copolymer or terpolymer) having 2 to 10 atoms. Aliphatic hydrocarbyl groups can also be derived from halogenated (eg, chlorinated, brominated) analogs of such homopolymers and interpolymers. However, such substituents may be monomeric high molecular weight alkenes (eg, 1-tetracontene) and their chlorinated and hydrochlorinated analogs, aliphatic petroleum fractions, especially paraffin waxes and pyrolyzed and chlorinated It is also possible to derive from analogs, white oils, synthetic alkenes such as those produced by the Ziegler Natta process (eg, poly (ethylene) grease), as well as other ingredients well known to those skilled in the art. If necessary, unsaturated bonds in the hydrocarbyl group can be reduced or eliminated by hydrogenation using methods well known in the art. A method using substantially no halogen such as chlorine or a preparation method using materials may be preferable for environmental reasons.

  One or more alkyl groups may be contained per aromatic nucleus of the aromatic ring, but usually 2 or 3 or less. Most commonly, only one hydrocarbyl group is included per aromatic moiety (especially when the hydrocarbyl-substituted phenol is based on a single benzene ring).

  Alkylphenols and the reaction products of alkylphenols with saponifiers or other components of the emulsion are referred to herein as alkylphenol components.

  The amount of alkylphenol component contained in the emulsion is from about 0.25 wt% to about 10 wt%, and optionally from about 0.5 wt% to about 2.5 wt%, based on the total weight of the emulsion.

An example of an alkylphenol component suitable for use in the compositions of the present invention is that marketed under the trade name 319H from Lubrizol Chem. Corp (Wickliff, Ohio). This material is a polymerized methylene coupled alkyl phenol of _C 24 _{-C 34.}

  The novel process for producing emulsions described herein improves efficiency in terms of time, energy, personnel, and production. In this method, the components of the emulsion are mixed in a single container, and then the mixture in the homogenizer is transferred under conditions as described below. An advantage of this method is that the emulsion mixture is prepared in a single container. That is, it is not necessary to prepare partial mixtures of the components of the emulsion and store them in separate containers before mixing them.

  Unsaponifiable wax (eg, 3816 wax described below) is melted and stored in a molten state at a temperature about 10 ° F. above the melting point, and water is added at a temperature at which the wax does not solidify. The material is added to the container as described in the following example.

  a. Molten unsaponifiable wax (eg, 3816 wax) is added at a temperature of about 189 ° F. to about 192 ° F. (about 87 ° C. to about 89 ° C.).

  b. Start heating and stirring.

  c. Add melted saponifiable wax and alkylphenol while continuing to stir.

  d. Add most of the water (eg, 95%) and continue stirring.

  e. Add the dispersant / surfactant (DISAL polynaphthalene sulfonic acid, further described elsewhere herein), carboxymethylcellulose and saponifier.

  f. Add the remaining water (preferably calculate the water used to rinse the test tube, including the subtracted total).

  g. For example, the tank is heated to a temperature of about 190 ° F. to about 210 ° F. (about 88 ° C. to about 100 ° C.).

  h. Stirring is continued for about 30 to about 150 minutes while maintaining the temperature.

  i. Pass through the homogenizer at about 1500 to about 3500 PSI (about 10 MPa to about 24 MPa).

  j. If necessary, cooling is performed in a process of performing the exothermic process twice. The first exothermic process is a process from the outlet temperature from the homogenizer to a predetermined temperature higher than room temperature, and the second exothermic process is a process up to room temperature (storage temperature). For example, the emulsion composition is passed from a homogenizer to a cooler to provide a first exothermic process, for example, about 10 ° F. to about 20 ° F. lower than the outlet temperature from the homogenizer, and then passed to the cooling bath For example, the second heat generation step is performed at a temperature lower by about 5 ° F. to about 15 ° F. while stirring as necessary. In one embodiment, the first exothermic step is cooled to about 130 ° F. to about 110 ° F., and the second exothermic step is cooled to about 110 ° F. to about 70 ° F.

  Without being bound to a particular theory, the two exothermic cooling steps complete the emulsion formation phase. As a result, the stability over time of the viscosity of the emulsion is improved as compared with the case where a single exothermic cooling step is used, and the stability is further increased against shear stirring. Another method of preparing the emulsion involves batch processing. In this batch treatment, a first premix composed of molten wax and alkylphenol is prepared, and a second premix composed of water, carboxymethylcellulose, polynaphthalenesulfonic acid, and a saponifying agent (aqueous premix) is prepared. The first premix and the second premix are then mixed in a mixing vessel, for example 1-3 hours, at least for a time sufficient to saponify the wax, and the resulting mixture is passed through a homogenizer. And cool as described above.

  Examples of ranges of components used in some of the embodiments described herein are shown in Table 1 below.

  Table 2 shows examples of component ratios used in one particular embodiment of the emulsion described herein.

  The emulsions described herein may optionally contain additional ingredients to improve the performance of the emulsion in the production of lignocellulosic composite products and the performance of the resulting composite product. The emulsions described herein have a viscosity of about 10 to about 100 centipoise as measured with a Brookfield viscometer. One sample of the emulsion had a viscosity of 9 cp at about 40% solids. The absence of stability, shear performance and foaming further improves the ability to accept these emulsions. For example, some of the emulsion samples remained in good condition after 4 minutes of stirring in a food blender. These emulsions are also compatible with urea-formaldehyde and phenol-formaldehyde systems used in the manufacture of many lignocellulosic products. Furthermore, because the system is amphoteric, it is stable over a wide range of pH and forms part of the overall reaction rather than as an additive to the reaction, thereby providing a more uniform end product. is there. It has been demonstrated that these emulsion embodiments do not contribute to biological activity.

  Oriented board (OSB) is a type of composite that can be produced using the emulsions described herein. To produce OSB using the hot press method, the lignocellulosic material is mixed with the resin and the emulsion of the present invention in a mixer. The resulting preform mixture is cast onto a support to form a 7/16 inch (about 1.1 cm) thick and 5/8 inch (about 1.6 cm) oriented board preform. This preform is placed on a call plate of a hot press machine, and a final product is obtained by applying a pressure higher than atmospheric pressure and a temperature higher than room temperature. The hot pressing method is further described in US Pat. No. 4,433,120 to Shui-Tung Chiu. A 12 inch × 12 inch (30.5 cm × 30.5 cm) panel was cut from the final product and tested for density, swelling, and absorbency. If necessary, a preservative described later may be added to the preform mixture in order to prevent undesired growth of organisms inside the panel.

  To illustrate the water resistance provided by the emulsions described herein, multiple samples of oriented boards were made using different amounts of emulsion. Samples of OSB board may contain wood strands, flakes or wafers, resin binder and emulsion as described in Table 2 in an amount of about 1% to about 0.25% (volume%) based on the volume of resin in the mixture. Made from a mixture mixed in Each mixture was placed in a mold and cured to form a board. A comparative board was made using 1% by volume of a commercially available comparative emulsion known as Cascowax EW-58. Cascowax EW-58 is believed to consist of a stearic acid TEA emulsion with a solids content of about 58%. Each sample was cut from the board, measured for size and weight, immersed in water at room temperature (about 72 ° F. (about 22 ° C.)) for 24 hours, and then measured for size and weight again.

  Table 3 below shows the results of different usage, control, and water absorption, edge swell rate and thickness swell rate tests for each emulsion sample. Water absorption was measured as the increase in weight relative to the weight of the sample at the start. Edge swelling rate is an indicator of the average increase in sample thickness measured along one or more edges relative to the starting sample thickness, and the central swelling rate is the starting sample thickness. Is an indicator of the increase in the thickness of the central part of the sample.

  The data in Table 3 shows that the sample emulsion significantly improves moisture absorption and edge and center swelling performance in wood composite products. Specifically, Samples 1 to 3 have lower moisture absorption, edge thickness swelling rate, and central portion swelling rate than Control, and Samples 2 and 3 have significantly lower emulsion content than Control. Similar results were obtained for all samples. This data shows that performance improvements are seen at a low content on a volume / volume basis relative to the control (about 50-75% less emulsion relative to the control). The test emulsion has less emissions from OSB and other board products and less board / resin interference. Test emulsions are also less susceptible to storage conditions than other specific emulsions. Because it was used as an equal volume of liquid, less solids were used for all wax conditions. The emulsion wax sample was slightly higher in density. The reduction in emissions is at least partly due to the fact that the same result as that of the control can be obtained even when the amount of emulsion added is such that less material is introduced into the lignocellulosic product. For example, Table 3 shows that using 1% sample emulsion containing only about 40% solids gives better results than using 1% control containing about 60% solids. Another factor believed to contribute to the reduction in emissions is the use of high melting point waxes with less volatile content compared to low melting point waxes in the emulsions of the present invention.

  For example, embodiments of the emulsions of the present invention that contain ammonium derived from an ammonium hydroxide saponifier exhibit superior performance compared to other embodiments. This is evidenced by preparing multiple emulsions each consisting of the following ingredients: That is, 33% unsaponifiable wax, 3% montan wax, 0.5% alkylphenol, 2% polynaphthalenesulfonic acid (2.5% unless otherwise specified), 0.5% carboxymethylcellulose. These embodiments comprise the indicated amount of saponifying agent, unsaponifiable wax, and additional components in the amounts shown in Table 4 below, with the balance being water. Each sample in Table 4 was prepared using the batch process described above. For emulsions B and E, the indicated amount of formaldehyde was added to the aqueous premix. For emulsions C, F, G, H and I, the indicated amount of formaldehyde was added to the emulsion after the emulsion was formed from the other ingredients.

  Each sample of the orientation board (OSB) was prepared using emulsions AJ. Further, an OSB sample was prepared using the emulsion shown in Table 2 (shown as sample K in the figure), and another sample was prepared using Cascowax emulsion marketed under the trade name EW-50S ( The performance of this sample was taken as the baseline (0%)). EW-50S is a paraffin wax emulsion containing stearic acid and TEA (triethanolamine). These samples were tested for moisture absorption rate, edge swelling rate, and central portion swelling rate by the methods described above. The results are shown in the figure. In the figure, the decrease in water absorption rate (bar graph indicated by WA), edge swelling rate (bar graph indicated by ES), and central portion swelling rate (bar graph indicated by CS) in other samples is a degree of improvement over the baseline sample ( % Δ). From the results shown in the figure, it can be seen that all sample emulsions showed improved performance compared to EW-50S in two of at least three tests.

  These experimental results show that the emulsions described herein perform well in providing water resistance to lignocellulosic products, thus eliminating the need for lignin compounds and biocides in some of these products. It proves that it is. The elimination of these two compounds facilitates the production of lignocellulosic composite products as well as wood using such emulsions and reduces manufacturing costs.

  The emulsion described herein can be permeated into wood and other lignocellulosic products to inhibit moisture absorption. It is believed that the lignocellulosic product is later dried to break the emulsion, release the internal wax, move to the product surface, and improve water resistance. If necessary, the emulsions described herein may contain a preservative in an amount effective to prevent biodegradation by growth of biological activity, i.e. mold, fungi, bacteria, insects, etc., within lignocellulosic composite products or wood. It can be used as an auxiliary agent for impregnating. When used in this way, the emulsion increases the retention of the preservative by the lignocellulosic material and reduces the amount of preservative that leaches into the surrounding environment when the preserved product is actually used. .

  In order to evaluate the ability of the emulsions described herein to increase the retention of preservatives absorbed by wood and other lignocellulosic products and to prevent the leaching of preservatives from the products, copper based preservatives (ACQ ) Was impregnated into the wood sample together with the sample emulsion and the emulsion of the comparative example, and the wood sample subjected to the storage treatment was immersed in water, and the appearance of copper leaching was observed. This was done as follows.

  A preservative solution was prepared by mixing a 40% solution of 25% ACQ with 70% water and 5% sample emulsion as shown in Table 2. The resulting mixture was stirred at room temperature for 2 minutes. The copper concentration in this starting mixture was measured using a DSC (Differential Scanning Calorimeter) well known in the art. For comparison, stearic acid and a triethanolamine composition commercially available from Osmose (Griffin, Georgia, USA) or Arc-Wood Protection Incorporated (Smyrna, Georgia, USA). A comparative solution was prepared using.

  A 2 inch x 1/4 inch x 12 inch (length) piece of pine lath piece with sandpaper is immersed in the above-mentioned wood preservative solution for 2 minutes with vigorous stirring and then pulled up. It was. The amount of copper remaining in the solution after each sample was pulled up was measured again. The amount of copper impregnated in the wood sample was determined as the difference in copper concentration from the starting solution.

  Each sample was dipped and dried for 2 minutes and then dried in an oven adjusted to 70 ° F. for 24 hours. After drying, each treated wood sample was immersed in clean water for 2 minutes with vigorous stirring. The amount of copper in the water was then determined using the DSC method, and the amount of copper retained by the sample was determined as the difference between the amount of copper in the water and the amount of copper absorbed by the sample. The relative amount of copper in the water indicates the degree of leaching.

  Results: The sample impregnated with the preservative solution consisting of the comparative emulsion leached almost 100% of the impregnated copper, whereas the sample impregnated with the preservative solution consisting of the sample emulsion showed about Only about 15 to about 25% leached. These results indicate that the emulsions described herein exhibit superior performance in penetrating preservatives into the wood and preventing subsequent leaching of the preservatives.

  In general, wood is made of wood impregnated with a preservative by performing a treatment using a preservative solution in which a preservative is added to a carrier solvent (usually water). In this method, the wood is put into a vacuum chamber, the inside of the chamber is decompressed, the antiseptic solution is introduced into contact with the wood in the chamber, the inside of the chamber is pressurized to promote absorption of the preservative by the wood, and the chamber The inside is decompressed to remove the carrier solvent from the wood. The preservative is introduced into the wood when the carrier solvent is absorbed, and at least a portion thereof remains inside the wood even after the carrier solvent is removed. The addition of the emulsions described herein to the preservative solution promotes the absorption of the preservative by the wood and improves the retention of the preservative by the wood when the carrier solvent is later removed.

  Suitable preservatives for injection into lignocellulosic products with the emulsions described herein are inorganic or organic preservatives, such as insecticides, fungicides, bactericides, and their fungicides. Biocides such as a combination of one or more of the biological agents. This biocide may be selected based on (1) the target organism, (2) solubility characteristics, (3) stability against temperature and pH, and other conditions required for the production of the composite. Biocides include substances that kill or prevent the growth of microorganisms such as molds, slime molds, fungi, bacteria. Bactericides, fungicides, bactericides are all examples of biocides. Fungicides include substances that kill fungi or prevent their growth. Bactericides include substances that kill bacteria. An insecticide is a drug that kills insects. More specific examples of biocides include, but are not limited to, chlorinated hydrocarbons, organometallic compounds, halogen releasing compounds, metal salts, organosulfur compounds, and phenols. Preferred biocides include, but are not limited to, ammonia base copper tetravalent ammonium complex (ACQ), ammonia copper zinc arsenate (ACZA), copper bis (dimethyldithiocarbamate) (CDDC), ammonia copper Chromate copper arsenate (CCA) such as citrate, copper azole, copper naphthenate, zinc naphthenate, quaternary ammonium salt, pentachlorophenol, tebuconazole (TEB), chlorothalonil (CTL), chloropyrifos, isothiazolone, Propiconazole, other triazoles, pyrethroids, and other insecticides, imidiclopide, oxine copper, and combinations of one or more of these biocides. In addition to these organic biocides, incorporate inorganic preservatives with varying release rates, such as boric acid, sodium borate, zinc, zinc borate, silica borate, copper and zinc salts It is also possible to use nanoparticles.

  Examples of preferred common fungicides include 3-isothiazolone, 3-iodo-2-propynylbutyl carbamate, 1,2-dibromo-2,4-dicyanobutane, methylene-bis-thio-cyanate (MBT), 2-thiocyano-methylthiobenzothiazole, tetrachloroisophthalo-nitrile, 5-bromo-5-nitro-1,3-dioxane, 2-bromo-2-nitropropane-1,3-diol, 2,2-di- Bromo-3-nitrilopropionamide (DBNPA), N, N′-dimethylhydroxyl-5,5′-dimethyl-hydantoin, bromochlorodimethylhydantoin, 1,2-benzisothiazolin-3-one, 4,5-tri- Methylene-2-methyl-3-isothiazolone, 5-chloro-2- (2,4-dichlorophenoxy -Phenol, 3,4,4'-trichlorocarbanilide, copper naphthenate, copper-8-hydroxy-quinoline, zinc borate, boric acid, trimethylboron, zinc oxide, glutaraldehyde, 1,4-bis (bromo -Acetoxy) -2-butene, 4,5-dichloro-1,1-dithiacyclopenten-3-one, chlorothalonil, quaternary ammonium compounds, and combinations of one or more of these fungicides.

  Examples of preferred common fungicides include zinc dimethyldithiocarbamate, 2-methyl-4-t-butylamino-6-cyclopropylamino-s-triazine, 2,4,5,6-tetrachloroisophthalo Nitrile, N, N-dimethyldichlorophenylurea, copper thiocyanate, N- (fluorodichloromethylthio) phthalimide, N, N-dimethyl-N′-phenyl-N′-fluorodichloromethylthiosulfamide, 2-pyridinethiol-1- Copper, sodium and zinc salts of oxides, tetramethylthiuram disulfide, 2,4,6-trichlorophenyl-maleimide, 2,3,5,6-tetrachloro-4- (methylsulfonyl) -pyridine, diiodomethyl p-tolylsulfone , Phenyl (bispyridyl) bismuth dichlorine 2- (4-thiazolyl) -benzimidazole, pyridine triphenylborane, phenylamide, halopropargyl compounds, propiconazole, cyproconazole, tebuconazole and 2-haloalkoxyallyl-3-isothiazolones (eg, 2- ( 4-trifluoro-methoxyphenyl) -3-isothiazolone, 2- (4-trifluoromethoxy-phenyl) -5-chloro-3-isothiazolone, 2- (4-trifluoromethoxyphenyl) -4,5-dichloro- Isothiazolone), and combinations of one or more of these fungicides.

  As fungicides, for example, farbum, ziram, manneb (manganese ethylene bisdithio-carbamate), mancozeb, dineb (zinc ethylene bisdithiocarbamate), propineb, metham, tyram, a complex of polyethyleneneuram sulfide and dazomet, And dithiocarbamates and derivatives thereof such as mixtures of these copper salts; nitrophenol derivatives such as dinocap, binapacryl and 2-sec-butyl-4,6-dinitrophenylisopropyl carbonate; captanformet, gliodin, dithianone, thioquinox, Benomyl, thiabendazole, vinorozoline, iprodione, procymidone, triadimenol, triadimethone, viteltanol, fluoroimide, trialimol, cycloheximide Heterocyclic structures such as ethylimole, dodemorph, dimethomorph, tyfamide and quinomethionate; various halogenated fungicides such as chloranil, dicron, chloroneb, tricamba, dichlorane and polychloronitrobenzene; fungicidal antibiotics such as griseofulvin, kasugamycin and streptomycin Various fungicides such as diphenylsulfone, dodin, methoxyl, 1-thiocyano-2,4-dinitrobenzene, 1-phenyl-thiosemicarbazide, thiophanate-methyl and simoxanyl; flaxil, ciprofram, offlace, benalaxyl, and oxadixyl Acylalanines such as: fluazinam, flumetber, phenylbenza such as those disclosed in EP 578,586 Derivatives, amino acid derivatives such as valine derivatives disclosed in EP 550,788, methyl (E) -2- (2- (6- (2-cyanophenoxy) pyrimidin-4-yloxy) Methoxyacrylates such as phenyl) -3-methoxyacrylate, S-methyl ester of benzo (1,2,3) thiadiazole-7-carbothioic acid, propamocarb, imazalyl, carbendazim, microbutanyl, fenbu-conazole, tridemorph, pyrazophos, Agricultural fungicides such as phenalimol, fenpiclonyl, pyrimethanil, and combinations of one or more of these fungicides can be used.

  A bactericidal / fungicidal combination may be added to the preservative composition. An example of a bactericidal / fungicidal agent is methazole D3TA. Methazole D3TA is 3,5-dimethyl-tetrahydro-1,3,5,2H-thiadiazine-2-thione commercially available from Ondo Narco (Houston, Tex.).

  Examples of preferred insecticides include acephate, aldicarb, α-cypermethrin, azinephos-methyl, bifenthrin, binapacryl, buprofezin, carbaryl, carbofuran, cartap, chlorpyrifos, chlorpyrifosmethyl, clofentezin, cyfluthrin, cyhexatin, Cypermethrin, Cifenotrin, Deltamethrin, Demeton, Demeton-S-methyl, Demeton-O-methyl, Demeton-S, Demeton-S-methylsulfoxide, Demefion-O, Demefion-S, Diarifor, diazinon, dicofol, dicrotophos , Diflubenzuron, dimethoate, zinocup, endosulfan, endthione, esfenvalerate, etiophencarb, ethion, ethoate-methyl, eslo Lop, etrimphos, fenamifos, fenazafurol, fenbutatin-oxide, fenitrothion, phenoxycarb, fencerfothion, fenthion, fenvalerate, flucycloxuron, flufenoxuron, fulvalinate, phonophos, phosmethylan, furthiocarb, hexithiazox, isofos Foss, isoxathion, methamidofos, metidathion, methiocarb, methomyl, methylparathion, mevinfos, mexacarbate, monocrotophos, nicotine, ometoate, oxamyl, parathion, permethrin, folate, fosarone, fosmet, fosfamidon, pirimicarbob, pirimiphos ethyl Fenofos, promecarb, propargite, pyrida Ben, resmethrin, rotenone, tebufenozide, temephos, TEPP, terbufos, thiodicarb, toccrophos-methyl, triazamate, triazophos, bamidthione, and combinations of one or more of these insecticides.

  Anti-termites can be used in addition to other insecticides as long as they do not affect the properties of the other insecticides. Anti-termite agents include permethrin, imidacloprid, etopfenprox, and combinations of one or more of these agents.

  Specific examples of preferred preservatives include didecyldimethylammonium chloride (DDAC), BARDAP (N, N-didecyl-N-methylpolyoxyethylammonium propionate), copper benzalkonium chloride and N-alkylbenzyl. Alkyl ammonium compounds such as dimethylammonium chloride (BKC); metal salts of naphthenic acid such as copper naphthenate (NCU) and zinc naphthenate (NZN); metal salts of versatate such as zinc versatate; cyproconazole [(2RS , 3RS; 2RS, 3SR) -2- (4-chlorophenyl) -3- (cyclopropyl-1- (1H-1,2,4-triazol-1-yl) butan-2-ol], tebuconazole [(RS ) -1-p-chlorophenyl-4,4-dimethyl-3- (1H) 1,2,4-triazol-1-ylmethyl) pentan-3-ol], propiconazole [1- [2- (2,4-dichlorophenyl) -4-propyl-1,3-dioxolan-2-ylmethyl] -1H-1,2,4-triazole], 1- [2- (2 ', 4-dichlorophenyl-1,3-dioxolan-2-ylmethyl] -1H-1,2,4-triazole-1-ethanol, Triazole type compounds such as 1- [2- (2 ′, 4′-dichlorophenyl) -4-propyl-1,3-dioxolan-2-ylmethyl] -1H-1,2,4-triazole-1-ethanol; Organic organic compounds such as IF-1000 [4-chlorophenyl-3-iodopropargyl formal] and IPBC [3-iodo-2-propynyl-N-butylcarbamate] The combination of one or more of the iodine compounds and their antiseptic agents.

  Lignocellulosic preservatives can be used in combination. Preferred combinations include cycloconazole and DDAC; cyproconazole and BARDAP; tebuconazole and propiconazole.

As preservatives, it is also possible to use compounds that are effective in inhibiting or preventing the growth of soft rot fungi such as wood rot fungi and soft rot fungi, mainly chaetomium globosum. Such compounds include p-cumylphenol (PCP) and salts such as sodium salt of p-cumylphenol, ethylamine salt of p-cumylphenol, and combinations of one or more of these preservatives. . PCP inhibits the growth of wood-rotting fungi, ascomycetous fungi, and incomplete fungi, and is also effective as an antifungal agent and an anti-termite agent. PCP is therefore particularly preferred. PCP exhibits a sufficient effect on wood materials at a treatment amount (use amount) of about 200 to 1000 g (g / m ³ ) per cubic meter of wood.

  General emulsions for wood preservatives may also be added to the emulsions described herein. For example, petroleum resins, rosins and waxes are suitable as further additives since they can increase the microbicidal activity of preservatives such as PCP and provide sustainability.

  Dinitrophenol, dinitro-O-cresol, chloronitrophenol, and the like, which are known as phenolic microbicides for wood, are not included in the woody preservatives of the present disclosure because they do not exhibit microbicidal activity against ascomycetes. I can't.

It is also possible to use mixtures of one or more of the preservatives mentioned above. One or more preservatives are effective in inhibiting biological activity within the wood or lignocellulosic composite product in which the preservative is used, such as from about 0.02 wt% to about 1 wt% of the emulsion, preferably Is used in an amount of about 0.1 wt% to about 1 wt% of the emulsion. Such usage is generally from about 2 to about 120 grams per cubic foot of wood (g / ft ³ ) (about 70 to about 4240 grams per cubic meter (g / m ³ )) and from about 12 to about 120 g / ft ³ (about 425 to about 4240 g / m ³ ). For example, the preservative is used in an amount of about 0.031 pounds per cubic foot of wood (about 500 g / m ³ ).

  It may be desirable to add other additives besides the lignocellulosic preservative to the preservative composition. For example, wood and wood products may be prepared from borax / boric acid, guanylurea phosphate, dicyandiamide phosphate formaldehyde, diethyl-N, N-bis (2-hydroxyethyl) -aminomethyl phosphate and one or more of these additives It may be desirable to treat with a flame retardant such as a combination of the above. These flame retardants are easily incorporated into nanoparticles formed from, for example, polyvinyl pyridine or polyvinyl chloride. Other additives that impart desirable properties to wood and wood products and that can be added to the composition include water repellents, colorants, UV inhibitors, adhesion catalysts, and one or more of these additives. Examples include combinations.

  Thus, an emulsion and a lignocellulosic composite product produced using such an emulsion have been disclosed. These emulsions are useful for imparting water resistance to lignocellulosic composite products and do not contribute to biological activities within the product. In some embodiments, these emulsions can be added to hot water, optionally boiling hot water, without separation and solidification. In some embodiments, the emulsion can be provided with long-term stability when stored at room temperature. In some embodiments, a bactericidal agent may not be added to the emulsion. In some embodiments, the emulsion may be a liquid having fluidity at room temperature. You may add a preservative to these emulsions as needed. Although specific embodiments as well as the best mode have been described herein, these embodiments are for illustrative purposes only. It will be apparent to those skilled in the art that these embodiments can be modified without departing from the spirit and scope of the appended claims.

The figure is a graph plotting the test results of a board sample prepared using the emulsion of the present invention versus a commercial control.

Claims (40)

A wax component comprising an unsaponifiable wax and a saponified wax;
An alkylphenol component;
A dispersant / surfactant;
A carboxymethylcellulose component;
An emulsion consisting of water. Emulsion according to claim 1, wherein the wax component constitutes a 2 5% to 50% of the emulsion by weight. The emulsion according to claim 1, wherein the wax component constitutes 30 % to 40 % of the emulsion by weight. The emulsion of claim 1, wherein the unsaponifiable wax is slack wax, scale wax, paraffin wax, or a combination thereof. The emulsion of claim 1, wherein the saponified wax is produced by reaction of a saponifiable wax with ammonium hydroxide, alkali metal hydroxide, or a combination thereof. 6. Emulsion according to claim 5, comprising saponified wax produced by reaction of saponifiable wax with potassium hydroxide or sodium hydroxide. The emulsion of claim 5 comprising a saponified wax produced by the reaction of a saponifiable wax and ammonium hydroxide. The emulsion according to claim 1, wherein the alkylphenol component has a C20-C42 alkyl group. The emulsion according to claim 1, wherein the alkylphenol component has a C24-C34 alkyl group. The emulsion according to claim 1, wherein the alkylphenol component has a C24 to C28 alkyl group. The emulsion of claim 1 wherein the dispersant / surfactant comprises polynaphthalene sulfonate. The emulsion according to claim 1, wherein the alkylphenol component comprises an alkylphenol having an alkyl group having an average carbon chain length that matches the carbon chain length of the carboxymethylcellulose. The unsaponifiable wax constitutes a 3 3% to 35% of the emulsion by weight,
The saponified wax constitutes 3 % to 5 % of the emulsion by weight,
0 of emulsion the alkylphenol component by weight. 5% to 2. Make up 5%,
The dispersant / surfactant is 0. 0 % by weight of the emulsion. Comprising 5% to 2 %,
The carboxy 0 emulsion methylcellulose components by weight. The emulsion of claim 1 comprising 2% to 5 %. The saponified wax is produced by the reaction of a saponifiable wax and ammonium hydroxide, and is further added in an amount of 0 . 14. Emulsion according to claim 13, comprising 5% formaldehyde. A method for improving the water resistance of a lignocellulosic composite product prepared by mixing a lignocellulosic material with a binder into a mixture and solidifying the mixture in a selected configuration, the mixture A process comprising adding an emulsion according to claim 1 to. 16. The method of claim 15, wherein the binder comprises a phenolic resin and includes adding 1 % emulsion to the volume of the resin. A method for improving the water resistance of a lignocellulosic composite product prepared by mixing a lignocellulosic material with a binder into a mixture and solidifying the mixture in a selected configuration, the mixture 14. A process comprising adding the emulsion of claim 13 to. 18. The method of claim 17, wherein the binder comprises a phenolic resin and includes adding 1 % emulsion to the volume of the resin. A lignocellulosic material is mixed with a binder to form a mixture, and an emulsion comprising a non-saponifiable wax and a saponified wax component, an alkylphenol component, a dispersant / surfactant, a carboxymethylcellulose component, and water is added to the mixture. A lignocellulosic composite product produced by solidifying the mixture in a selected configuration. Unsaponifiable wax is 3 3% to 35% of the emulsion by weight, saponification wax is 3% to 5% of the emulsion by weight, 0 emulsion alkylphenol component by weight. 5% to 2. It was 5%, dispersing agent / surfactant 0 emulsion by weight. 5 to 2 % and the carboxymethylcellulose component is 0. 0 % of the emulsion by weight. The lignocellulosic composite product according to claim 19, which is 2% to 5 %. A method for treating wood, comprising impregnating wood with an emulsion comprising an unsaponifiable wax and a wax component comprising a saponified wax, an alkylphenol component, a dispersant / surfactant, a carboxymethylcellulose component and water. The method of claim 21 before Symbol emulsion containing saponified wax produced by the reaction of the saponified wax with ammonium hydroxide. Unsaponifiable wax is 3 3% to 35% of the emulsion by weight, saponification wax is 3% to 5% of the emulsion by weight, 0 emulsion alkylphenol component by weight. 5% to 2. It was 5%, dispersing agent / surfactant 0 emulsion by weight. 5 to 2 % and the carboxymethylcellulose component is 0. 0 % of the emulsion by weight. The method according to claim 21, which is 2% to 5 %. The method of claim 23 before Symbol emulsion containing saponified wax produced by the reaction of the saponified wax with ammonium hydroxide. The method of claim 21, comprising impregnating the wood with a preservative solution of a preservative and the emulsion added to a carrier solvent to remove the carrier solvent from the lignocellulosic product. The step of impregnating the wood includes placing the wood into the chamber, depressurizing the chamber, adding a preservative solution to the chamber in contact with the wood, and repressurizing the chamber. 26. The method according to 25. 26. The method of claim 25, wherein removing the carrier solvent comprises depressurizing the chamber. 26. The method of claim 25, wherein the preservative comprises a 1 % to 5 % emulsion by weight. 29. The method of claim 28, wherein the preservative comprises 1 % to 2 % emulsion by weight. 30. The method of claim 28, wherein the preservative comprises a copper compound. 32. The method of claim 30, wherein the preservative comprises ACQ. 26. Wood made of wood treated according to the method of claim 25. Placing a molten unsaponifiable wax, a saponifiable wax, an alkylphenol, water, a dispersant / surfactant, a saponifier, and carboxymethylcellulose into a mixture,
A method of preparing an emulsion comprising heating, stirring and homogenizing the mixture. Put a molten unsaponifiable wax, a saponifiable wax, an alkylphenol component, and water into a container to form a first mixture, stirring the first mixture, a dispersant / surfactant, a saponifying agent 34. The method of claim 33, comprising adding carboxymethylcellulose and carboxymethylcellulose to form a second mixture, and heating, stirring and homogenizing the second mixture. 34. The method of claim 33, further comprising cooling the emulsion to room temperature. 36. The method of claim 35, comprising cooling the emulsion in a step of performing two exothermic steps. And that by weight add the amount of saponifiable wax as a 3 3% to 35% of the emulsion,
0. Emulsions by weight. 5% to 1 . Adding a saponifying agent in an amount of 5%,
0. Emulsions by weight. 5% to 2. Adding an alkylphenol component in an amount of 5%,
0. Emulsions by weight. And placing a 5-2% become the amount of dispersant / saponification agents,
0. Emulsions by weight. 34. The method of claim 33, comprising adding an amount of 2% to 5 % carboxymethylcellulose. 38. The method of claim 37, further comprising cooling the emulsion to room temperature. 40. The method of claim 38, comprising cooling the emulsion in a step of performing two exothermic steps. 34. The method of claim 33, comprising matching the carbon chain length of the alkylphenol component with the carbon chain length of the carboxymethylcellulose.

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